diff options
Diffstat (limited to 'zephyr/emul/emul_bb_retimer.c')
| -rw-r--r-- | zephyr/emul/emul_bb_retimer.c | 134 |
1 files changed, 58 insertions, 76 deletions
diff --git a/zephyr/emul/emul_bb_retimer.c b/zephyr/emul/emul_bb_retimer.c index 9a3e0a7b6e..266fd1a340 100644 --- a/zephyr/emul/emul_bb_retimer.c +++ b/zephyr/emul/emul_bb_retimer.c @@ -1,4 +1,4 @@ -/* Copyright 2021 The Chromium OS Authors. All rights reserved. +/* Copyright 2021 The ChromiumOS Authors * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ @@ -16,13 +16,10 @@ LOG_MODULE_REGISTER(emul_bb_retimer); #include "emul/emul_common_i2c.h" #include "emul/emul_bb_retimer.h" +#include "emul/emul_stub_device.h" #include "driver/retimer/bb_retimer.h" -#define BB_DATA_FROM_I2C_EMUL(_emul) \ - CONTAINER_OF(CONTAINER_OF(_emul, struct i2c_common_emul_data, emul), \ - struct bb_emul_data, common) - /** Run-time data used by the emulator */ struct bb_emul_data { /** Common I2C data */ @@ -44,7 +41,7 @@ struct bb_emul_data { }; /** Check description in emul_bb_retimer.h */ -void bb_emul_set_reg(struct i2c_emul *emul, int reg, uint32_t val) +void bb_emul_set_reg(const struct emul *emul, int reg, uint32_t val) { struct bb_emul_data *data; @@ -52,12 +49,12 @@ void bb_emul_set_reg(struct i2c_emul *emul, int reg, uint32_t val) return; } - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; data->reg[reg] = val; } /** Check description in emul_bb_retimer.h */ -uint32_t bb_emul_get_reg(struct i2c_emul *emul, int reg) +uint32_t bb_emul_get_reg(const struct emul *emul, int reg) { struct bb_emul_data *data; @@ -65,39 +62,39 @@ uint32_t bb_emul_get_reg(struct i2c_emul *emul, int reg) return 0; } - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; return data->reg[reg]; } /** Check description in emul_bb_retimer.h */ -void bb_emul_set_err_on_ro_write(struct i2c_emul *emul, bool set) +void bb_emul_set_err_on_ro_write(const struct emul *emul, bool set) { struct bb_emul_data *data; - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; data->error_on_ro_write = set; } /** Check description in emul_bb_retimer.h */ -void bb_emul_set_err_on_rsvd_write(struct i2c_emul *emul, bool set) +void bb_emul_set_err_on_rsvd_write(const struct emul *emul, bool set) { struct bb_emul_data *data; - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; data->error_on_rsvd_write = set; } /** Mask reserved bits in each register of BB retimer */ static const uint32_t bb_emul_rsvd_mask[] = { - [BB_RETIMER_REG_VENDOR_ID] = 0x00000000, - [BB_RETIMER_REG_DEVICE_ID] = 0x00000000, - [0x02] = 0xffffffff, /* Reserved */ - [0x03] = 0xffffffff, /* Reserved */ - [BB_RETIMER_REG_CONNECTION_STATE] = 0xc0201000, - [BB_RETIMER_REG_TBT_CONTROL] = 0xffffdfff, - [0x06] = 0xffffffff, /* Reserved */ - [BB_RETIMER_REG_EXT_CONNECTION_MODE] = 0x08007f00, + [BB_RETIMER_REG_VENDOR_ID] = 0x00000000, + [BB_RETIMER_REG_DEVICE_ID] = 0x00000000, + [0x02] = 0xffffffff, /* Reserved */ + [0x03] = 0xffffffff, /* Reserved */ + [BB_RETIMER_REG_CONNECTION_STATE] = 0xc0201000, + [BB_RETIMER_REG_TBT_CONTROL] = 0xffffdfff, + [0x06] = 0xffffffff, /* Reserved */ + [BB_RETIMER_REG_EXT_CONNECTION_MODE] = 0x08007f00, }; /** @@ -105,20 +102,20 @@ static const uint32_t bb_emul_rsvd_mask[] = { * * @param emul Pointer to BB retimer emulator */ -static void bb_emul_reset(struct i2c_emul *emul) +static void bb_emul_reset(const struct emul *emul) { struct bb_emul_data *data; - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; - data->reg[BB_RETIMER_REG_VENDOR_ID] = data->vendor_id; - data->reg[BB_RETIMER_REG_DEVICE_ID] = BB_RETIMER_DEVICE_ID; - data->reg[0x02] = 0x00; /* Reserved */ - data->reg[0x03] = 0x00; /* Reserved */ - data->reg[BB_RETIMER_REG_CONNECTION_STATE] = 0x00; - data->reg[BB_RETIMER_REG_TBT_CONTROL] = 0x00; - data->reg[0x06] = 0x00; /* Reserved */ - data->reg[BB_RETIMER_REG_EXT_CONNECTION_MODE] = 0x00; + data->reg[BB_RETIMER_REG_VENDOR_ID] = data->vendor_id; + data->reg[BB_RETIMER_REG_DEVICE_ID] = BB_RETIMER_DEVICE_ID; + data->reg[0x02] = 0x00; /* Reserved */ + data->reg[0x03] = 0x00; /* Reserved */ + data->reg[BB_RETIMER_REG_CONNECTION_STATE] = 0x00; + data->reg[BB_RETIMER_REG_TBT_CONTROL] = 0x00; + data->reg[0x06] = 0x00; /* Reserved */ + data->reg[BB_RETIMER_REG_EXT_CONNECTION_MODE] = 0x00; } /** @@ -133,12 +130,12 @@ static void bb_emul_reset(struct i2c_emul *emul) * @return 0 on success * @return -EIO on error */ -static int bb_emul_handle_write(struct i2c_emul *emul, int reg, int msg_len) +static int bb_emul_handle_write(const struct emul *emul, int reg, int msg_len) { struct bb_emul_data *data; uint32_t val; - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; /* This write only selected register for I2C read message */ if (msg_len < 2) { @@ -155,8 +152,7 @@ static int bb_emul_handle_write(struct i2c_emul *emul, int reg, int msg_len) LOG_WRN("Got %d bytes of WR data, expected 4", msg_len - 2); } - if (reg <= BB_RETIMER_REG_DEVICE_ID || - reg >= BB_RETIMER_REG_COUNT || + if (reg <= BB_RETIMER_REG_DEVICE_ID || reg >= BB_RETIMER_REG_COUNT || reg == BB_RETIMER_REG_TBT_CONTROL) { if (data->error_on_ro_write) { LOG_ERR("Writing to reg 0x%x which is RO", reg); @@ -191,11 +187,11 @@ static int bb_emul_handle_write(struct i2c_emul *emul, int reg, int msg_len) * @return 0 on success * @return -EIO on error */ -static int bb_emul_handle_read(struct i2c_emul *emul, int reg) +static int bb_emul_handle_read(const struct emul *emul, int reg) { struct bb_emul_data *data; - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; if (reg >= BB_RETIMER_REG_COUNT) { LOG_ERR("Read unknown register 0x%x", reg); @@ -219,12 +215,12 @@ static int bb_emul_handle_read(struct i2c_emul *emul, int reg) * * @return 0 on success */ -static int bb_emul_write_byte(struct i2c_emul *emul, int reg, uint8_t val, +static int bb_emul_write_byte(const struct emul *emul, int reg, uint8_t val, int bytes) { struct bb_emul_data *data; - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; if (bytes == 1) { data->data_dword = 0; @@ -249,12 +245,12 @@ static int bb_emul_write_byte(struct i2c_emul *emul, int reg, uint8_t val, * * @return 0 on success */ -static int bb_emul_read_byte(struct i2c_emul *emul, int reg, uint8_t *val, +static int bb_emul_read_byte(const struct emul *emul, int reg, uint8_t *val, int bytes) { struct bb_emul_data *data; - data = BB_DATA_FROM_I2C_EMUL(emul); + data = emul->data; /* First byte of read message is read size which is always 4 */ if (bytes == 0) { @@ -279,7 +275,7 @@ static int bb_emul_read_byte(struct i2c_emul *emul, int reg, uint8_t *val, * * @return Currently accessed register */ -static int bb_emul_access_reg(struct i2c_emul *emul, int reg, int bytes, +static int bb_emul_access_reg(const struct emul *emul, int reg, int bytes, bool read) { return reg; @@ -298,27 +294,20 @@ static int bb_emul_access_reg(struct i2c_emul *emul, int reg, int bytes, * * @return 0 indicating success (always) */ -static int bb_emul_init(const struct emul *emul, - const struct device *parent) +static int bb_emul_init(const struct emul *emul, const struct device *parent) { - const struct i2c_common_emul_cfg *cfg = emul->cfg; - struct i2c_common_emul_data *data = cfg->data; - int ret; + struct bb_emul_data *data = emul->data; - data->emul.api = &i2c_common_emul_api; - data->emul.addr = cfg->addr; - data->i2c = parent; - data->cfg = cfg; - i2c_common_emul_init(data); + data->common.i2c = parent; - ret = i2c_emul_register(parent, emul->dev_label, &data->emul); + i2c_common_emul_init(&data->common); - bb_emul_reset(&data->emul); + bb_emul_reset(emul); - return ret; + return 0; } -#define BB_RETIMER_EMUL(n) \ +#define BB_RETIMER_EMUL(n) \ static struct bb_emul_data bb_emul_data_##n = { \ .vendor_id = DT_STRING_TOKEN(DT_DRV_INST(n), vendor), \ .error_on_ro_write = DT_INST_PROP(n, error_on_ro_write),\ @@ -333,29 +322,22 @@ static int bb_emul_init(const struct emul *emul, .finish_read = NULL, \ .access_reg = bb_emul_access_reg, \ }, \ - }; \ - \ - static const struct i2c_common_emul_cfg bb_emul_cfg_##n = { \ - .i2c_label = DT_INST_BUS_LABEL(n), \ - .dev_label = DT_INST_LABEL(n), \ - .data = &bb_emul_data_##n.common, \ - .addr = DT_INST_REG_ADDR(n), \ - }; \ - EMUL_DEFINE(bb_emul_init, DT_DRV_INST(n), &bb_emul_cfg_##n, \ - &bb_emul_data_##n) + }; \ + \ + static const struct i2c_common_emul_cfg bb_emul_cfg_##n = { \ + .dev_label = DT_NODE_FULL_NAME(DT_DRV_INST(n)), \ + .data = &bb_emul_data_##n.common, \ + .addr = DT_INST_REG_ADDR(n), \ + }; \ + EMUL_DT_INST_DEFINE(n, bb_emul_init, &bb_emul_data_##n, \ + &bb_emul_cfg_##n, &i2c_common_emul_api) DT_INST_FOREACH_STATUS_OKAY(BB_RETIMER_EMUL) -#define BB_RETIMER_EMUL_CASE(n) \ - case DT_INST_DEP_ORD(n): return &bb_emul_data_##n.common.emul; +DT_INST_FOREACH_STATUS_OKAY(EMUL_STUB_DEVICE); -/** Check description in emul_bb_emulator.h */ -struct i2c_emul *bb_emul_get(int ord) +struct i2c_common_emul_data * +emul_bb_retimer_get_i2c_common_data(const struct emul *emul) { - switch (ord) { - DT_INST_FOREACH_STATUS_OKAY(BB_RETIMER_EMUL_CASE) - - default: - return NULL; - } + return emul->data; } |